CVE-2026-58616

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

Score

CVSS 3.1 4.4 Medium

Status

Analyzed - secure@microsoft.com

Published

2026-08-28

Last modified

2026-10-28

Weaknesses

CWE-362

Affected products

• Edge (Microsoft)
• Edge Chromium (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58616